The Transportation Research Board Committee on Statewide Multimodal Transportation Planning and the Federal Highway Administration sponsored a national Statewide Travel Demand Modeling Peer Exchange in Longboat Key, Florida, September 23-24, 2004. The states represented in the peer exchange had a wide range of experiences with statewide travel demand models (TDMs) - some had never considered a model, some were debating the development of a model, some had attempted to develop a model with limited success, and others were actively using a model in many aspects of state planning and operation. The participants discussed their statewide models (if they had one), the purpose and use of models in their state, problems and limitations of the model, and plans for future improvements.